Expedia has run a study which shows the preferences of flyers from Malaysia, Singapore and Thailand.
Most of the study respondents told they spent their time sleeping, specially in flights of 10+ hours.
When asked about essential items on a flight, mobile devices were the most important, followed by water, meals, headphones and something to read. In the case of Thai travellers, they found mobiles and headphones more important than water, and their need for alcoholic beverages was very small compared to travellers from other nations such as Australia.
About paying for a meal and avoiding baggage fees, Thai travellers behave pretty much the same as travellers from any other country.
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Thailand travellers value comfort, sleep and hydration